S-91249A112 4-40 x 9/16" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing replacement frequency.
- High tensile strength of 70,000 psi ensures reliable fastening under stress, minimizing the risk of mechanical failure.
- Precise Class 2A thread fit guarantees smooth assembly and secure connections, reducing installation time and errors.
- Rockwell B70 hardness provides excellent durability and wear resistance, extending the screw's service life.
- Coarse UNC threading offers quick engagement and strong holding power in various materials, enhancing efficiency.
- Fully threaded design allows for maximum grip along the entire length, improving load distribution and stability.
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures industry-standard quality and environmental safety for global applications.
Professional Applications & Engineering Value
These 4-40 UNC rounded pan head Phillips screws are engineered to address common industrial challenges, such as corrosion and mechanical stress. Made from Black-Oxide 18-8 Stainless Steel, they provide superior protection against rust and oxidation, making them ideal for demanding environments like electronics assembly, machinery, and outdoor equipment. The coarse thread spacing and Class 2A thread fit ensure easy installation and reliable performance in high-vibration settings, reducing maintenance needs. With a Phillips drive and rounded pan head, they offer secure fastening without damaging surfaces, supporting efficient production lines and long-term reliability in industrial applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and UNC coarse threading for consistent performance, manufactured in accordance with ASME B18.6.3 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.
